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CVE-2024-1135VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat OpenStack Platform 17.1 (python-gunicorn) security update

Affects Red HatSource GCVE Database

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Not known to be exploited.

Data as of 1 Nov 2026, 08:20 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
2.9% chance of exploitation in 30 days – higher than 87% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 May 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.

What to do

AI-suggested

Red Hat has released an official security update for python-gunicorn in OpenStack Platform 17.1 on RHEL 9 to address this vulnerability. Users should apply the update as described in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate the issue. No alternative mitigations or workarounds are specified, so patching is the recommended action.

Description

A security vulnerability (CVE-2024-1135) affecting Gunicorn, a Python WSGI HTTP server used in Red Hat OpenStack Platform 17.1, allows HTTP Request Smuggling due to improper validation of Transfer-Encoding headers. This flaw could enable attackers to interfere with HTTP request processing. Red Hat has issued an important security update to address this issue in python-gunicorn packages for OpenStack 17.1 on RHEL 9.

References

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